Lock



Oct. 10, 1933.

G. w. HALL ET AL LOCK Filed April l5, 1.932v

ATTORNEY.

Patented Oct. 10, 1933 kUNITED STATES PATENT OFFICE port,

Conn.

Application April 15, 1932. Serial No. 605,434

5 Claims.

Our invention relates to improvements in locks, and more particularly to thattype of lock which is adapted for use in the doors of motor vehicles.

An object of our invention is to provide, a lock of this type with means for illuminating the face, or outer end of the key cylinder, when it is desired to insert a key therein.

A further object of our invention is to provide means for closing the lighting circuit for the lock by manipulation of the door handle.

These and other objects and advantages of our invention will be more fully disclosed and described in the accompanying drawing,l the specification, and the appended claims.

Broadly, our invention comprises, in combination with a lock having the usual bolt, the lock being secured in a door of the motor vehicle, an outer cylinder revolvably secured in the door, means secured to the outer cylinder for operating the lock bolt, an inner cylinder xedly secured to the door, a tumbler lock secured in the inner cylinder and operating a bolt which locks the outer cylinder to the inner cylinder, a lamp located and secured within the inner cylinder and connected to the usual lighting system of the motor vehicle, means for reecting the light from the lamp onto the face of the tumbler lock, a handle secured to the outer cylinder, and means for closing the circuit to the lamp when the handle is turned through a slight angle.

Whereas, we have preferred to illustrate and describe our invention as it is adapted for use with the lock of a motor vehicle, we do not conne ourselves to this use only, as it will be readily understood that our invention may be adapted with equal ease and eciency to any lock whose bolt operation is controlled by a key releasing latch.

A preferred form of our invention is illustrated in the accompanying drawing, in which:

Fig. 1 is a plan sectional view illustrating the means for locking the outer and inner cylinders together and the means for illuminating the face of the tumbler lock.

Fig. 2 is a cross sectional View on the line 2-2 of Fig. 1 showing the keyhole end of the'lock.

Fig. 3 is a cross sectional view on the line 3-3 of Fig. 1, illustrating the means for closing the circuit of the lamp, and

Fig. 4 is a diagrammatic View of the handle showing its various positions for operation of, rst, closing the circuit to the lamp, and second, operating the lock bolt after the outer cylinder has been released by turning the key in the tumbler lock.

Referring now to the drawing in detail, in which like numerals refer to like parts throughout:

The door l has secured therein the lock case 2, which is equipped with the usual spring-operated bolt 3. The outer cylinder 4 is revolvably secured in the door l and the lock case 2 has secured to its outer end the handle 5. The inner cylinder 6 is formed with the ange '7, and is secured against rotation by being secured to the door 1 by screws 8 in the ilange 7. Shoulders 9 and 10, formed on the cylinder 6, serve as bearings for the cylinder 4 and space the cylinder 6 from the rotatable cylinder 4. The lug 11, formed on the cylinder 4, engages in the notch 12, formed in the bolt 3 and serves to draw back the bolt when the cylinder 4 is revolved in a clockwise direction, as shown by the arrow 4'. The inner fixed cylin- /der 6 has secured in its outer end the spidershaped plate 13 which is formed with the spokes 14 and openings 15. The tumbler lock 16 is secured in the plate 13 and has incorporated therein the usual key-operated crank arm 17 which operates the lock bolt 18. When the crank arm 17 is in its locking position, the bolt 18 is engaged in the opening 19, formed in the outer revolvable cylinder 4, thus locking the two cylinders together and preventing movement of the outer cylinder.- The threaded plug 20 is removably secured in the anged end 2l of the inner fixed cylinder A6 by the threads 22, and the electric lamp 23 is secured in the plug 20. The end terminal 24 of the lamp 23 is grounded on the plug 20. The metallic cas,- ing 25,0f the lamp 23 is insulated from the plug 29 by the insulation sleeve 26. The reflector 27, secured on the lamp casing 25, engages against the pin 28, which is secured in the cylinder 6 and insulated therefrom by' the collet 29 of insulating material. The binding post 30, secured in the outer cylinder 4 and insulated therefrom by the collet 31 of insulating material, forms in co-operation with the pin 28, a switch which opens and closes the lamp circuit as contact between the post 30 and the pin 28 is broken or made, respectively, by a slight turning movement of the outer cylinder 4 with the handle 5. Sufficient play is provided in the notch 12 of the bolt 3 and the opening 19 in the revolvable cylinder 4 to permit the slight movement of the cylinder 4, necessary to bring the binding post 30 into contact with the pin 28. The action of the spring-operated bolt 3, in returning to its normal position when the handle 5 is released, turns the `cylinder 4 and breaks the contact between the pin 28 and post 30. The two operating positions of the door handle are indicated in Fig. 4. The normal locked position of the handle 5 is indicated in full lines, the switch-operating position is shown at 5', and the bolt-releasing position at 5".

In operation, the handle 5 is turned into the dotted position, indicated at 5'. In this position, the lamp circuit is closed, and is as follows: From the battery 35, wire 36, binding post 30, pin 28, reilector 27, lamp casing 25, lament 37, end terminal 24, ground 38, battery 35. The light rays from the llamp travel, as indicated by dash lines `40 in Fig. 1, through the cylinder 6 and openings 15 of the spider plate 13 to the inner surface 31 of the hub 32 of the handle 5, from which they are reflected back onto the outer keyhole face 33 of the tumbler lock 16. The key 34 is then inserted, through the opening 42 formed in the hub, into theY lock 16, the bolt 18 withdrawn from the opening 19 in the revolvable cylinder and the handle 5 turned to the position, indicated at 5" in Fig. 4, thereby releasing the bolt 3 and permitting the door 1 to be opened.

What we claim is:

1. In a door locking mechanism, for the purpose described, the combination withinner and outer cylinders, the outer cylinder being rotatably mounted, a latch bolt operable by said outer cylinder, a handle secured to the outer cylinder, a key operated cylinder lock secured in the inner cylinder, means for locking said outer cylinder to said inner cylinder comprising a lock bolt operated by said key operated cylinder lock, and a lamp located within said inner cylinder for illuminating the face of said key operated cylinder lock.

2. In a door lock'ing mechanism, for the purpose described, the combination withinner and outer cylinders, the outer cylinder being rotatably mounted, a latch bolt operable by said outer cylinder, a handle secured to the outer cylinder, a key operated lock secured in the inner cylinder, means for locking said outer cylinder to said inner cylinder comprising a lock bolt operated by said key operated lock, and a lamp 1ocated within said inner cylinder for illuminating the face of said key operated lock, an electric circuit for said lamp, and means for opening and closing said electric circuit by manipulation of said handle.

3. A door locking mechanism, having an outer revolvable cylinder and an inner xed cylinder, a bolt, a key operated tumbler lock operating the bolt for locking the two cylinders together against movement and located in the said inner cylinder, means for illuminating the face end of Said key operated tumbler lock comprising a lamp secured within said inner cylinder, an electric circuit for said lamp, and means for opening and closing saidl electric circuit by slightly altering the relative positions of the inner and outer cylinders.

4. In combination, a lock, a movable bolt in said lock, a revoluble bolt-operating cylinder, a key cylinder within said bolt-operating cylinder, means comprising a transversely slidable bolt between the cylinders for locking the revoluble bolt-operating cylinder against movement by movement of a key in said key cylinder, and a lamp secured in said bolt-operating cylinder for illuminating the face of said cylinder.

5'. In combination in a lock for a motor vehicle door, a revolubly mounted cylinder which is normally retained in a xed position, a handle secured to said cylinder, operable means between the cylinder and the bolt of the lock, means for releasing the cylinder, and means for illuminating the releasing means, said means comprising a xed inner tube, a second lock in the tube, a tube-locking bolt between the cylinder and the inner tube, a lamp in the tube, and a reflector element Within said cylinder opposite said lamp and directed toward the face of said secondary lock, the illuminating means being actuated when said handle is moved.

GEORGE W. HALL. HENRY E. NICKERSON. 

